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Finding the Fourth Proportional to 659,066.26, 988,243.70 and 299,040.65

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Solution

The fourth proportional to 659,066.26, 988,243.70 and 299,040.65 is: 448,399.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,066.26 : 988,243.70 = 299,040.65 : x
  2. Step 2: Convert to fraction form
    659,066.26/988,243.70 = 299,040.65/x
  3. Step 3: Cross multiply
    659,066.26x = 988,243.70 × 299,040.65
  4. Step 4: Simplify right side
    659,066.26x = 295,525,039,210.96
  5. Step 5: Solve for x
    x = 295,525,039,210.96/659,066.26
  6. Step 6: Final answer
    x = 448,399.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.